HASSNER, ALFRED;DEHAEN, WIM, J. ORG. CHEM., 55,(1990) N0, C. 5505-5510
作者:HASSNER, ALFRED、DEHAEN, WIM
DOI:——
日期:——
Synthesis of new 2-substituted 3-amino-4-hydroxymethylthiophenes through intramolecular nitrile oxide cycloaddition processes and N,O-bond cleavage
作者:Venerando Pistarà、Antonino Corsaro、Maria A. Chiacchio、Graziella Greco、Paolo Quadrelli
DOI:10.3998/ark.5550190.0012.618
日期:——
A synthesis of new2-substituted3-amino-4-hydroxymethylthiophenes 7 is reported as a useful alternative to the long known oximation of oxothiophenes 8, followed by treatment with gaseous hydrochloric acid in a polar solvent. The synthesis consists of an INOC process of unsaturated sulfide nitrileoxides, obtained from the condensation of corresponding nitroalkenes and allylmercaptan and then dehydration